DuraVent DuraTech 7" Diameter Stainless Steel 9" Pipe Length 7DT-09SS All Fuel Chimney Pipe
All-fuel, double-wall chimney system. UL 103 HT and ULC S604
With a Thermal Tech blanket insulation encased between dual walls, DuraTech offers optimum safety and performance. It keeps the outer wall of the chimney cool while ensuring high flue gas temperatures for optimum draft performance.
The inner wall is 25% thicker than competitive chimneys for an extra margin of safety. No locking bands or mechanical fasteners are required.
DuraTech’s sleek 1″ wall design provides for easy installations through 16″ on-center framing. For tight installations, a Reduced Clearance Square Ceiling Support Box is available (6" diameter DuraTech only).
Designed for normal, continuous operation at 1000°F flue gas temperatures, DuraTech is subjected to rigorous and stringent high-temperature requirements of the UL standard, including one hour at 1400°F, plus three ten-minute chimney fire test at 2100°F.
|Inner Diameter, A||7 inch|
|Outer Diameter, B||9 inch|
|Pipe Length||9 inch|
|Inner Wall Material
||0.020” 430 Stainless Steel|
|Outer Wall Material||0.016” 430 Stainless Steel|
Chimney Pipe Dimension
To calculate installed length of 5”, 6”, 7”, or 8” DuraTech Chimney, subtract 1 1⁄4” from each joint overlap of chimney pipe. Allow a minimum of 2” air space to
combustibles when installing DuraTech Chimney.
DuraTech is a double-wall, all-fuel chimney system for use with wood stoves, fireplaces, furnaces, boilers, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas, and zero-clearance fireplaces that are factory-built.
Materials and Construction
5”, 6" 7", or 8” diameter pipe features an inner wall of .020” 430 stainless steel. Outer wall options of .016” 430 stainless steel or .021” galvalume steel. Refractory insulation is encased between walls. Stainless steel end rings seal the pipe.
DuraTech features lightweight insulation, twist-lock fittings, support boxes with factory-installed starter sections, elbows with 360° swivel base, select black finish pipe lengths, five-foot length pipe sections, and adjustable pipe lengths.
2” clearance to combustibles.
Shroud specs allow the installer to create a UL-listed shroud to hide the termination at the top of the chase for the safest installation.
- A wide variety of diameters is available.
- Most lengths are available.
- Twist-lock fittings. No locking bands or mechanical fasteners are required.
- Made by the industry leader with over 50 years of manufacturing.
- The swivel base allows an installer to line up the elbow without unlocking and repositioning the elbow, saving time and money.
- Ensures that the installer gets both the offset and return elbow along with an elbow support bracket to make a properly code-approved offset.
- Limited Lifetime Warranty The best Warranty in the industry. 15 years 100%, 15 years, and up 50%. Gives the installer and homeowner the greatest peace of mind in a quality installation.
Typical Chimney Installation
Refer to our Typical Installation to select the appropriate component parts for your installation.
- DVL/DuraBlack Chimney Adapter must be used when connecting DVL pipe to a Ceiling Support Box or Finishing Collar. When connecting the DuraBlack pipe, a DVL/DuraBlack Chimney Adapter, DuraBlack Slip Connector, or Snap-Lock Adapter must be used.
- Wall Thimble must be installed with an appropriate length of chimney pipe for all horizontal through-the-wall installations. To accommodate thicker walls, the telescoping pieces of the Wall Thimble can be separated, and a field-fabricated extension may be installed.
- Attic Insulation Shield must be used in all installations that pass through an attic, regardless of whether the attic is insulated or not.
- Firestop Radiation Shield must be used when a chimney passes through a floor or ceiling without a support box.
About the manufacturer:
Consistently the first to market with new innovations in venting systems, DuraVent has captured a leadership position in emerging markets. DuraVent has patents for several products and continues to design safe and technologically advanced venting.The company’s research into solving problems with corrosion, when biofuels such as corn are used, led to the break-through patent for PelletVent Pro.
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